This mask was made famous for it’s use in the film V for Vendetta. (if you haven’t seen it go watch it!) The amazing film portrays the character namely V who brings the country to a stand still as his actions against the police state government that rules at the time the film is set in. It symbolises freedom and the power of the people against the ruling class.
This is probably the main reason why it has been used and adopted by the internet hacker group Anonymous. Their use of the mask has turned it into a symbol of political equality and is worn by many at peaceful protests all over the world.
I bet this Halloween you will see many people walking around wearing these masks. An ideal outfit if you mix it in with a long black cape! Thats all you need for the perfect original Halloween outfit.